Armed with more power and greater responsibility, Ragnar's desire to seek out and conquer new kingdoms remains unquenchable. Loyalties shift as friends turn to foes and unlikely alliances are formed. Amidst all the war and political confusion, not a single soul is spared in the name of supremacy.

Season five begins with Ivar the Boneless asserting his leadership over the Great Heathen Army, while Lagertha reigns as Queen of Kattegat. Iver's murder of his brother Sigurd sets the stage for vicious battles to come, as Ragnar's sons plot their next move after avenging their father's death.

Season Six returns following the battle between brothers which left Bjorn Ironsides a hero to the people who have been under the tyrannical rule of Ivar for so long. As the new leader of Kattegat, Bjorn struggles to fill his late father's shoes as king, while facing critical dilemmas and wrestling with the idea that power overshadows morals. Meanwhile, Ivar travels to Russia and meets his match in Prince Oleg, a ruthless and unpredictable ruler.

"After discovering that she is a shield maiden who can repel any attack, a fanatical jarl binds Freya with a blood oath to protect Skaland"-- Bound in an unwanted marriage, Freya spends her days gutting fish, but dreams of becoming a warrior. And of putting an axe in her boorish husband's back. Freya's dreams abruptly become reality when her husband betrays her to the region's jarl, landing her in a fight to the death against his son, Bjorn. To survive,...